Method of and apparatus for determining the intensity of colors
United States Patent 1964365

Inventors:
Joseph, Razek
Mulder, Peter J.
Publication Date:
06/26/1934
Export Citation:
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Assignee:
Joseph, Razek
Mulder, Peter J.
Primary Class:
356/319
Other Classes:
346/107.300, 250/214R, 250/228, 250/226
International Classes:
G01J3/51
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